Combination guide and alarm for slubbing, reducing, and roving frames and like spinning and twisting machines.



No. 878,300. PATENTED FEB. 4. 1908.

J. LUMB. COMBINATION GUIDE AND ALARM FOR SLUBBING, REDUCING, AND

D LIKE SPINNINGA ND TWISTING MACHINES. APPLICATION rum) APB..26,1907.

ROVING FRAMES AN 2 BHEET88HEBT 1.

"No. 878,300. PATENTED FEB. A, 1908.

' J. LUMB. COMBINATION GUIDE AND ALARM FOR SLUBBING, REDUCING,

AND

ROVING FRAMES AND LIKE SPINNING AND TWISTING MACHINES."

-sn1zm 2.

2 SHEETS APPLICATION FILED ARR.26.1907.

flue/2707' 6 m w W 3 I AM/r ms NDRRIS PETERS co., wnumunm. n. c

UNITED STATES PATENT OFFICE.

JOSEPH LUMB, OF HUDDERSFIELD, ENGLAND.

COMBINATION GUIDE AND ALARM FOR SLUBBING, REDUCING, AND ROVING FRAMES AND LIKE SPINNING AND TWISTING MACHINES.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed April 26. 1907. Serial No. 370.467.

To all whom it may concern:

Be it known that I, Josnrn LUMB, a subj ect of the King of Great Britain, residing at Huddersfield, York, England, have invented certain new and useful improved Combination Guides and Alarms for Slubbing, Re ducing, and Roving Frames and Like Spinning and Twisting Machines, of which the following is a specification.

This invention relates to audible alarm devices of the kind in which detectors are used for completing an electrical alarm circuit in slubbing, reducing and roving frames and like spinning and twisting machines, particularly in such machines employed in the spinning of worsted, and my said invention consists in an improved combination guide and alarm as hereinafter described.

My invention comprises a series of detector Wires serving also as guides and combined with an electrical bell or audible signal circuit and with a thread support in such a manner that when a thread fails or breaks the corresponding detector wire falls and com pletes the electrical circuit and rings the bell, or sounds the audible signal. The detector wires are so constructed that they can be raised permanently when required.

Referring to the accompanying drawings which illustrate the application of my invention to a roving frame, Figure 1 is a side view of so much of the machine with the alarm mechanism attached as is necessary to illustrate my invention. Fig. 2 shows diagrammatically the arrangement of the electrical circuit. Fig. 3 is a front view on a larger scale of two sets of detector wires and guides, and Figs. 4 and 5 are respectively end view and plan of said detector wires and guides. Fig. 6 is a view of a detector wire.

Like letters of reference denote corresponding parts in the several figures.

A, A denote the bobbins from which the slubbings are drawn; B, B, B, are the back rollers; C, C the front rollers; and D, D the intermediate supporting rollers or carriers all arranged as heretofore well known.

E, E are the slubbings passing between the rollers B, D, O, to the flier spindle F and being drawn and twisted together in the known manner.

Immediately behind the back rollers B, are the guides G, G shaped as shown in Fig. 3, said guides being carried by brackets H Which are fixed to the usual reciprocating bar J mounted in the frame of the machine. The brackets H are perforated at a point between the guides and the back rollers to receive the detector wires T which are made U-shaped as shown in Fig. 6 but with one leg longer than the other for a purpose that will hereinafter be explained. There are two holes provided in the bracket for each detector wire, and the detector wires are able to move quite freely up and down in said holes in the brackets. In this type of machine it is usual to draw two threads or slubbings and twist them into one, and therefore two detector wires are provided in close proximity as indicated more clearly in Fig. .3. The detector wires hang on the slubbings or threads which are adequately supported by the uppermost of the back rollers B and the horizontal parts of the guides G.

Immediately below the detector wires is arranged a metal bar K suitably carried by electrically insulated supports L which electrically insulate the said bar K from the frame of the machine. \Vhen the thr .ads or slubbings are intact as indicated in Fig. l the lower ends of the detector wires are held clear of the bar K, but should a thread break or fail, the corresponding detector wire will drop until its lower end rests on the bar K as indicated in Fig. 2. The electrical alarm circuit is shown diagrammatically in Fig. 2. One conductor is connected through the bell M to the bar K, and the other conductor is con-- nccted to the frame of the machine. Consequently the circuit remains incomplete so long as the detector wires are all raised, but is completed immediately any one of the detector wires falls and makes contact with the bar K. Preferably the electrical connection between the frame of the machine and the electrical conductor is made in a known manner through a spring N and rod 0, Fig. 2, which rod may be the shipper rod itself that stops and starts the machine or a rod connected to the shipper rod and moving with it. By this means the electrical circuit is also broken as is known in electrical stop motion arrangements when the shipper rod is moved to stop the machine.

From the above description it will be seen that whenever a thread breaks or fails the corresponding detector wire will drop and complete the bell circuit thus giving an audible signal and drawing the operators attention to such breakage or failure. The operthread with both its legs hanging ator can then discover the fault and repair it without loss of time. Before repairing a broken end the operator raises the fallen detector wire and turns it to bring its short end over and resting on the top of the bracket H thus breaking the bell circuit. After repair ing the broken thread, the detector wire is replaced in position suspended from the freely in the holes in the bracket H. The detector wires are similarly raised and placed with their short ends resting on the top of the bracket H when the corresponding bobbins run out, and also in cases where a portion of the machine is out of use.

The detector, wires being arranged as shown in Figs. 3 and 5 it is obvious that the threads are thereby kept substantially apart when entering between the rollers and there is in consequence no liability of the threads becoming twisted or crossed while passing between the rollers, such as sometimes happens with the usual form of guides, but the same are kept distinct and separate until they leave the front rollers and hencejlthe work of drawing each slubbing is properly performed.

WVhat I claim is A combination guide and detector for slubbing, reducing, and like spinning and twisting machines, comprising a perforated guide bracket, U-shaped detector devices suspended from the slu bbings with their ends hanging freely in the perforations in said guide bracket, the limbs of the detector devices being of unequal length so that, when raised and turned, the short limbs may rest on said guide bracket, while the long limbs still extend into their guide perforations, and signal means operable by the falling of a detector device.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOSEPH LUMB.

Witnesses:

WM. RAMsDEN, ARTHUR EDWARD PEARSON. 

